16465144441 has 2 divisors, whose sum is σ = 16465144442. Its totient is φ = 16465144440.

The previous prime is 16465144433. The next prime is 16465144477. The reversal of 16465144441 is 14444156461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8892490000 + 7572654441 = 94300^2 + 87021^2 .

It is a cyclic number.

It is not a de Polignac number, because 16465144441 - 2³ = 16465144433 is a prime.

It is a super-2 number, since 2×16465144441² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16465144394 and 16465144403.

It is not a weakly prime, because it can be changed into another prime (16465144541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8232572220 + 8232572221.

It is an arithmetic number, because the mean of its divisors is an integer number (8232572221).

Almost surely, 2^16465144441 is an apocalyptic number.

It is an amenable number.

16465144441 is a deficient number, since it is larger than the sum of its proper divisors (1).

16465144441 is an equidigital number, since it uses as much as digits as its factorization.

16465144441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 40.

The spelling of 16465144441 in words is "sixteen billion, four hundred sixty-five million, one hundred forty-four thousand, four hundred forty-one".